Prepare for Windows builds

src/main.py

@@ -17,6 +17,7 @@
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
 
+import os
 import sys
 import time
 
@@ -58,6 +59,9 @@ class CartridgesApplication(Adw.Application):
         self.create_action("add_game", self.on_add_game_action, ["<primary>n"])
         self.create_action("remove_game", self.on_remove_game_action)
 
+        if os.name == "nt":
+            self.lookup_action("bottles_import").set_enabled(False)
+
         self.win = None
 
     def do_activate(self):